【教材分析】
Module 1 Small Talk
Period Two：Grammar and Function
（1）三维目标
A．Knowledge and skills
1) Get the students to learn and grasp talking about obligation or lack of obligation.
2) Learn the differnece of “didn’t need to do” and “needn’t have done”
B．Process and methods
1) Make dialogues according to the situations teacher invented for them
2) Practise in different dialogues
C. Emotion, attitude and values
Learning to understand the importance of skills of talking module.
（2）教学重点
Let the students learn the expressions “have to do”and “must”; needn’t to do and didn’t need to do
（3）教学难点
How to improve students skill of expressing the obligations.
（4）教学建议
